Correction to: BMC Pregnancy and Childbirth (2018) 18:405

https://doi.org/10.1186/s12884-018-2039-z

Following publication of the original article [1], the author reported the following errors:

1. The correct name of the last author is Margaret Gyapong and not Margarete Gyapong.

2. The word “ordered” in the 3rd line under statistical methods should be removed.

The original article has been corrected.